Sound volume adjusting apparatus
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United States of America Patent
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Feb 23, 2016
Grant Date -
May 15, 2014
app pub date -
Jan 23, 2014
filing date -
Aug 26, 2009
priority date (Note) -
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Abstract
A sound volume adjuster includes: a storage which stores a first value of a volume setting value and an allowable maximum change amount; a communication interface which receives a change request indicating a second value of the volume setting value; a comparison device which, when a change amount of the volume setting value between the first value and the second value exceeds the allowable maximum change amount, determines that the change request is an excessive request; and a volume controller which, when the comparison device determines that the change request is the excessive request: changes the first value stored in the storage by a change amount which is equal to or smaller than the allowable maximum change amount to set a third value of the volume setting value; and adjusts a sound volume by the third value.
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